It's only been a few days with the VC, so i expect this to change with time (hopefully for the better). So far though, after the initial excitement phase I found the Eikon (which I had thought were Atticus for the longest time) to be...boring. I don't much care for bass, contrary to your preferences, i listen to more "classic rock" and maybe some modern stuff but mostly things with more mids and low highs (vocals, guitars, violins etc). So far i find the VC to **not** have that initial excitement as i'd mentioned but...somehow more addictive. I really cannot stop listening to music, it's been YEARS since i've not just enjoyed my music this much but wanted to listen to more songs. I have music playing like 8-10 hours everyday now.
The one thing I do find though is that VC is a lot more "laidback" than Eikon, at least to my ears. I didn't really know what that word meant until recently but basically, the Eikon would present me my music with some coloring (more bass slam for example), a bit bland other than that and not as much detail BUT SHOVE it in my face. On the flipside so far the VC has been much more neutral (almost like it's getting out of the way and letting the music speak for itself, at least that's the impression i get), shocking amount of detail and GODLIKE speed (like really, DAMN should have just named these headphones "the flash") but I need to actually walk around the room, get up from my 'chair' and walk around to see all the details, not just because there's a lot of it but because it doesn't shove any of that in your face.
I think some pad swapping and some more burning may make it a little more forward. And i'm sure a more powerful Tube Amp would bring back a bit more of the slam, but...the end result regardless is that i'm listening and enjoying my music much more. Could that be all in my head (i mean, look at it, it's so pretty!) sure...who cares though.